Apache Hive - Classes that implement Reducer interface

NameTypeParentImplementing InterfaceDetail

ExecReducer Class org.apache.hadoop
.mapred.MapReduceBase 		Closeable , AutoCloseable , org.apache.hadoop.mapred
.JobConfigurable , org.apache.hadoop.mapred
.Reducer 		Detail
ReduceSinkDesc.ReducerTraits Enum java.lang.Enum Serializable , Comparable Detail